Sack jigger and shaper for grain thrashing machines



Dec. 1, 1931. I OLIVER 1,834,472

SACK JIGGER AND SHAPER FOR GRAIN THRASHING MACHINES Filed April 20, 19295 Sheets-Sheet 1 AT EY.

i i I 0 2 af j 1 q) 24/ i5 7 ii 2 P INVENTbR. 7/ irqyeM/Mn Dec. 1, 1931.G. 1.. OLIVER 1,834,472

SACK JIGGER AND SHAPER FOR GRAIN THRASHING MACHINES Filed April 20, 19293 Sheets-Sheet 2 INVENTOR.

6190292 LUZ: #97.

Dec. 1, 1931. e. L. OLIVER 1,834,472

SACK JIGGER AND SHAPER FOR GRAIN THRASHING MACHINES Filed April 20, 19293 Sheets-Sheet 5 i l INVENTOR. 46 Georyeli OZz'zfler:

Patented Dec. 1,- 1931 UNITED STATES -GEORGE I1. OLIVER, 0] 201111302,WASHINGTON SACK Ileana AND swim roa (mam mnsnme uacnnms Application medApril20, 1829. Serial No. 356,788.

This invention relates to certain new and useful improvements in sackjigger and shaper for grain thrashing machmes, and has for its primaryobject to provide an L improved construction of jigger mechanism for thegrain bag constructed in a manner to shape the bag, especially at thelower corners thereof to msure complete filling of the sack and also-forsettling the grain in the W sack during the filling operation.

A further object of the invention is to provide a sack jigger of theabove type wherein the sack shaper comprises a casing formed of hingedsections carried by a shak- 15 ing or oscillating plate of the jiggermechanism for supporting the side walls of the sack during fillingoperation.

With the above and other objects in View that will become apparent'asthe nature of so the invention is better understood, the same consistsin the novel form, combination and arrangement of parts hereinafter moreful ly described, shown in the accompanying drawings and claimed.

In the drawings v Figure 1 is a front elevational view, partly insection of a sack jigger and shaper constructed in accordance with thepresent invention, one of the sack shapers being illustrated in openposition and illustrating the jiggering mechanism; Figure 2 is a sideelevational view;

Figure 3 is a side view of one of the jigger devices and shaper showingthe latch mechanism for showing the shaper in closed and lockedcondition;

Figure 4 is a fragmentary plan view showlng a pair of sack rests of thejigger.

with the operating rod therefor;

Figure 5 is a front elevational view, partly in section of a sack jiggershowing another form of jigger mechanism;

Figure 6 is a vertical cross-sectional view of the construction shown inFigure 5;

Figure 7 is a horizontal sectional view taken on line 7-7 of Figure 6showing the centering springs for the sack holders; and

Figure 8 is a detail sectional view showing the splined clutch elementsfor rendering either of the sack holders operable.

The invention relatin to a sack' jigger and shaper attachment or grainthrashm machines, a part of the latter is illustrate and as shown, thereference numeral 1 designates a platform supported on a base structure2 and having a stand 3 rising therefrom for supporting a grain ho persaw at its upper end that is charged y the elevator; 5 shown moreclearly in Figure 2.

The sack holder comprises a frame 6 horizontally disposed and projectingforwardly of the stand 3 adjacent the lower end of the 'hopper 4 and isbraced or supported by the suspending chains 7 extending between theupper end of the hopper 4 and the outer end of the sack frame 6. Thesack 8 is supported at its upper end as at 9 in the frame 6 and thelower end of the sack rests upon i the plate 9 movably mounted above theplatform 1. The plate 9 has its upper face recessed as at 10 to shapethe lower end of the sack, the ends 10a of the recess opening at theopposite end of the plate 9 to permit the lower corners 8a of the sackto extend be 0nd the plate 9 to insure a more perfect fil ing of thesack with grain.

A sack shaper is carried by the plate 9 and comprises a pair of casingsections 11 and 12 hinged together as at 13, the casing section 12 ofthe shaper swinging to an open position in a horizontal plane. The casinsection 11 is anchored as at 13 to the p ate'9 and said sections areretained in' their closed position by the latch mechanism 14 including areleasing rod 15. The coiled spring 16 po- 1 sitioned exteriorl of thecasing sections 11 and 12 and associated with the hinged sides 13thereof automatically open the casing sections when the latch mechanism14 is released. The lower ends. of each casing sectionll and 12 are cutaway as at 17 and when said sections are closed as illustrated in Figure2, the cut away ends 17 overlie the recessed ends 100 of the plate 9 topermit the bag corners 8a to project therethrough.

The grain hopper 4 is provided with a pair of feed openings, onedisposed above each sack frame 6 and controlled by a sliding gate 18.Each gate 18 has .a link connection 19 with the lever 20 pivotedat 21upon the forward side of the hopper 4 so that when thelever is moved toeither side upon its ivot, one of the gates 18 is either raised orowered for discharging grain from the hopper into the chosen sack.

The shaking or jiggering mechanism for the sack 8 to cause the ain tosettle therein or completely to fill t e sack is associated with thebase structure 2, the sack rest or plate 9 being carried by a dependingconeshaped bearlng 22 extendin through and rotatable in a journal box 23epending from the platform 1 with a laterally directed arm 24 upon itslower end. A power shaft 25 'ournaled in the base structure 2 and drivenchain and sprocket mechanism 26 is adapted to drive the crank shaft 27through chain and sprocket mechanism 28, the two crank shafts 27 beingseparately operable and under control of the clutch 29 having the linkand lever connections with the hand lever 30 disposed above the platform1 as shown in Figure 1. The crank portion 31 of-each crank shaft 27 hasa pitman rod connection 32 with the depending lugs 33 carried by theouter end of the bearing arm 24.

The sack 8 is suspended at the sack hanger 6 at its open upper end withthe lower closed end thereof resting upon the plate 9 and seated in theoval-shaped recess 10 as shown in Figures 1 and 2 and 4. Grain deliveredto the bin 4 by the elevator 5 is discharged, under control of the gate18 into the desired sack 8. It is to be understood that the shapercomprising the casing sections 11 and 12 are closed around the sack asshown in Figures 2 and 3with the corners 8a of the sack extendingthrough the end openings 10a in the plate 9 and through the cut awayportions 17 in the casing section. During the filling of the sack withgrain, the jigger mechanism associated with the base structure 2 causesoscillation of the bearing block 22 carrying the plate 9 to effect acomplete settling of the grain in the stack and completely filling thelower corners 8a thereof. The oscillating bearing blocks 22 for the sacksupporting plate 9 are controlled in their operation by the clutch 29operated by the lever 30, the crank shafts 27 oscillating the bearingblocks 22 through the medium of their pitman rod connections 32 with thelaterally directed arms 24 on the bearing blocks. In this manner, thegrain is fully settled in the sack and the same completely filled.

In the form of the invention shown in Figures 5 to 8 a diiferent type ofoperating mechanism is provided for oscillating the plates 9, theconical bearing blocks 22a being journaled in boxes 23a and each havinga bevel gear 35 fixed to the lower end thereof below the journal box23a. A horizontal bar 36 is secured as at 37 to the journal boxes 23awith opposite ends thereof bent downwardly A shaft 43 is journaled inthe blocks 42 beneath the bevel gear 35, a crank arm 44 ex tending fromone end thereof having pivotal connection with 'areciprocating pitmanrod 45 operated by suitable power devices. A

pair of bevel pinions 46 are freely rotatable on the shaft 43, eachpinion meshing with an associated'bevel gear'35 with a clutch element 47carried by the inner side thereof. A double clutch sleeve 48 having aclutch element 49 upon each end thereof for cooperation with the clutchelement 47 is splined' upon the shaft 43 as at 50 and is adapted to beshifted by the link and lever devlces 51 under control of the handle 52to render either of the pinions 46 operable. Centering springs 53 extendbetween the brace bars 39 and bevel gear 35 so that when the clutchsleeve 48 disengages from both clutch elements 47 upon the pinions 46,the sack supporting plate 9 will be shifted by said springs forrendering the sacks 8 accessible for removal from the sack supportingframe when the doors 12 are opened.

While there is herein shown and described the preferred embodiments ofthe present invention, it is nevertheless to be understood that minorchanges may be made therein without departing from the spirit and scopeof the invention as claimed.

I claim 2+ 1. A sack jigger and shaper comprising an oscillating platehaving a central depression to receive the bottom of the sack, ashapercasing formed of hinged sections carried by the plate, and meansfor oscillating the plate.

2. A sack jigger and shaper comprising an oscillating plate, a shapercasing carried by the plate having a central depression to receive thebottom of the sack, said plate and casing being constructed to permitthe lower sack corners to extend beyond the plate, and means foroscillating the plate.

3. A sack jigger and shaper comprising an oscillating plate, a shapercasing carried by the plate having a central depression to receive thebottom of the sack, said plate and easing being constructed to permitthe lower sack corners to extend beyond the plate, means for oscillatingthe plate, the shaper casing being formed of hinged sections with onesection fixed to the plate, means for holding the sections in closedposition, and a spring for automatically opening the movable casingsection.

4. A sack jigger and shaper comprising an oscillating plate, a shapercasing carried by the-plate having a central depression to receive thebottom of the sack, said plate and casing being constructed to permitthe lower sack corners to extend beyond the plate, means for oscillatingthe plate, the shaper casing being formed of hinged sections with onesection fixed to the plate, means for holding the sections in closedposition, a spring for automatically opening the movable casing section,a platform over which the plate is mounted, a vertical bearing for theplate extending through the platform, and means for oscillating theplate and bearing.

5. A sack jigger and shaper comprising an oscillating plate, a shapercasing formed of hinged sections, one of which is fixed to the plate,said plate having a depression therein opening at the sides thereof, andthe casing sections being cut-away at their lower ends overlying thedepression ends to permit the lower sack corners to extend therethrough,and means for oscillating the plate.

6, A sack jigger and shaper comprising an oscillating plate, a shapercasing formed of hinged sections, one of which is fixed to the plate,said plate having a depression therein openings at the sides thereof,the casing sections being cut-away at their lower ends overlying thedepression ends to permit the lower sack corners to extend therethrough,and means for oscillating the plate, a sack holder above the plate andshaper, and a gate controlled grain bin discharging into the upper endof the sack.

7. A. sack jigger and shaper comprising an oscillating plate, a shapercasing formed of hinged sections, one of which is fixed to the 40 plate,said plate having a depression therein opening at the sides thereof, andthe casing sections being cut-away at their lower ends '4 overlying thedepression ends to permit the lower sack corners to extend therethrough,

4 and means for oscillating the plate, including an eccentric arm onthe'lower end of the plate and crank mechanism engaged with the arm foroperating the same.

In testimony whereof I aflix my signature.

to GEORGE L. OLIVER.

